Well conduit joint sealing system

Details Well conduit joint sealing system Well conduit joint sealing system

1986-05-27

1987-12-01

Novosad, Stephen J.

Wells

Processes

Placing or shifting well part

166376, 175288, 277171, 408 82, 409143, E21B 2900, B23B 4112

Patent

active

047097612

ABSTRACT:
Disclosed is apparatus and method for a system useful in establishing a metal to metal seal between conduit joints in wells. A milling tool having means controlling down force on and positioning the cutter is used to cut and/or finish a seat on a shoulder in a well conduit, which will mate and seal with metal seal surfaces on seal units lowered on conduits into the well. One seal unit has elastomeric seals in addition to the metal seals.

REFERENCES:
patent: Re25860 (1965-09-01), Elias
patent: 1038914 (1912-09-01), Long
patent: 2295856 (1942-09-01), Mallory
patent: 2709490 (1955-05-01), Trimble et al.
patent: 3164039 (1965-01-01), Woods
patent: 3871456 (1975-03-01), Sizer et al.
patent: 4147462 (1979-04-01), Appleby et al.
patent: 4288082 (1981-09-01), Setterberg, Jr.
patent: 4496162 (1985-01-01), McEver et al.

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